公开(公告)号：US20170218480A1

公开(公告)日：2017-08-03

申请号：US15414778

申请日：2017-01-25

Applicant: Seoul National University R&DB Foundation

Inventor： Eun Soo PARK ,  Kooknoh Yoon ,  Khurram Yaqoob ,  Je In Lee ,  Jin Yeon Kim

IPC: C22C1/08 ,  C22C30/02 ,  C22C3/00 ,  B22D25/00

CPC classification number: C22C1/08 ,  B22D25/005 ,  B22F3/10 ,  C22C1/0425 ,  C22C1/0433 ,  C22C3/005 ,  C22C30/02 ,  Y10T428/12 ,  Y10T428/12479

Abstract: The present invention relates to a HEA foam prepared by selective dissolution of a second phase within a two-phase separating alloy comprising the HEA and a manufacturing method thereof. The manufacturing method of the HEA foam of the present invention has the effect of preparing a novel HEA foam, which was not available in the past, by leaving only a first phase after manufacturing a two-phase separating alloy comprising a first phase by HEA, wherein at least 3 metal elements act as a common solvent.Furthermore, the HEA foam of the present invention has a structure, wherein pores are distributed inside the HEA, in which at least 3 metal elements act as a common solvent. By adding a functional characteristic of low heat conductivity, etc., to the existing high strength characteristic of HEA, the HEA foam of the present invention can exhibit a complex effect by the combination of the two particular effects, thereby being capable of exhibiting excellent physical characteristics.

公开(公告)号：US10941463B2

公开(公告)日：2021-03-09

申请号：US16743031

申请日：2020-01-15

Applicant: Seoul National University R&DB Foundation

Inventor： Eun Soo Park ,  Kooknoh Yoon ,  Khurram Yaqoob ,  Je In Lee ,  Jin Yeon Kim

IPC: C22C1/08 ,  B22D25/00 ,  C22C30/02 ,  C22C3/00 ,  C23F1/28 ,  C23F1/30 ,  C23F1/00 ,  C23F1/26 ,  B22F3/10 ,  C22C1/04

Abstract: The present invention relates to a HEA foam prepared by selective dissolution of a second phase within a two-phase separating alloy comprising the HEA and a manufacturing method thereof. The manufacturing method of the HEA foam of the present invention has the effect of preparing a novel HEA foam, which was not available in the past, by leaving only a first phase after manufacturing a two-phase separating alloy comprising a first phase by HEA, wherein at least 3 metal elements act as a common solvent. Furthermore, the HEA foam of the present invention has a structure, wherein pores are distributed inside the HEA, in which at least 3 metal elements act as a common solvent. By adding a functional characteristic of low heat conductivity, etc., to the existing high strength characteristic of HEA, the HEA foam of the present invention can exhibit a complex effect by the combination of the two particular effects, thereby being capable of exhibiting excellent physical characteristics.